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John
John, Engineer and electronic enthusiast for more than 12 years.
Category: Consumer Electronics
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I need help with my vintage kenwood kr107r receiver, I'm not

Customer Question

Hi I need help with my vintage kenwood kr107r receiver
JA: What's the make/model of your device? How old is it?
Customer: I'm not sure how old it is but it is a kenwood kr-v107r At least 30 yrs
JA: How long has this been going on? What troubleshooting have you tried?
Customer: It has been on and off for a couple months but seems to be constant now. I can only hear any signal when it is at maximum volume and even then it is very crackly and low quality
JA: Anything else you want the electronics expert to know before I connect you?
Customer: That should be all
Submitted: 10 months ago.
Category: Consumer Electronics
Expert:  Louie replied 10 months ago.

Hi, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.

Initially, a little more info please:
• is the symptom commonly observed on any and all inputs/modes;
• checked/replaced/swapped speakers & wires;
• even when using headphones.

Are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter and even a soldering iron?

Customer: replied 10 months ago.
It is experienced with all inputs and multiple speakers and speaker wires. I have not tried the head phone jack yet
Expert:  Louie replied 10 months ago.

For test purposes, yes please on the headphone when able.

Customer: replied 10 months ago.
I don't have a 1/4 jack to use
Expert:  Louie replied 10 months ago.

Still and as above posted, are you then considering a DIY (do-it-yourself) repair approach?

Customer: replied 10 months ago.
I am
Expert:  Louie replied 10 months ago.

Great on the DIY!

Please have the cover removed to expose the inside circuitry. Then post back with clear closeup pictures of the board(s). Click HERE.

These pictures are critical as it would serve as common reference when pointing out check/test points.

Customer: replied 10 months ago.
Here you are
Expert:  Louie replied 10 months ago.

Thanks.

Let's start with the basics and clean the isides including the controls; use compressed air or better yet, plastic safe / non-staining CRC 2-26, DeoxIT DN5 or LPS 03116 Contact Cleaner or equivalent but allow sufficient drying time.

Please post back results / observations of the above once tried.

Then for test purposes, do you have another amp or receiver that can be used to test the Kenwood?

Customer: replied 10 months ago.
I don't have any of those things this may not be the right service for me

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